The Blade,check Valve, cataloged under National Stock Number 1660-01-378-0175, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-378-0175 |
| Primary Part Number | 85183 |
| Item Name | Blade,check Valve |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 85183 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
NSN 1660-01-378-0175 is a Blade,check Valve, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-378-0175 has 1 manufacturer part number on file: 85183 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-441-0968. Verify interchangeability with system specifications before substitution.
Key specifications for 85183: End Item Identification: PACER DAWN. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.